Locomotive construction



June 9, 1925. 1,541,080

L. C. TOLLIVER LOCOMOTIVE CONSTRUCTION Filed Sept. 8, 1922 5Sheets-Sheet 1 IVz'tmxss es June 9,1925. 1,541,080

v c. TOLLIVER LOCOMOTIVE CONSTRUCTION Filed Sept. 8, 1922 3 Sheets-Sheet2 fi th 719.56 Wm M L. C. TOLLIVER LOCOMOTIVE CONSTRUCTION June-9, 1925,1,541,080

Filed Sept. 8, 1922 s Sheets-Sheet 5 L afollz'ver,

Patented June 9, 1925.

UNITED stares LOUI'S C.. TOLLIVER,

Q1 TELIESI'ITY, TEXAS.

LOCOMOTIVIE cons'rnuoeroiv. i

Application filed September 8, 192 2. is erial No. 587,000

To all whom it may concern:

Be it known that I, LOUIS G. Tonmvnn, a citizen .of the United States,residing at Trinity, in the county of Trinity and State of Texas, haveinvented new and useful Improvements in Locomotive Constructions, ofwhich the following is a specification.

In carrying out the present invention it is my purpose to provide aconstruction of locomotive wherein the driving engines will be soconstructed and so connected to the drive wheels of the locomotive thatthe power delivered to the drive wheels will be considerably increased,thereby enabling the locomotive to be used for hauling relatively greatloads and to attain comparatively high speed.

It is also my purpose to provide dual cngines on each side of theloco-motive and to connect each set of engines to the same drive wheels,thereby enabling great pow r to be delivered to the drive wheels.

With the above recited objects in view, and others of a similar nature,the invention resides in the construction, combination and arrangementof parts set forth in and falling within the scope of the appendedclaim.

In the accompanying drawings:

Figure 1 is a fragmentary side elevation of a locomotive constructed inaccordance with my invention.

Figure 2 is a sectional view on the line 22 of Figure 1.

F igure 3 is a detail view showing the cranks on one of the drivewheels, the drive wheel being shown in section.

Figure 4- is a plan view showing the con nections to the drive wheels.

Figure 5 is a detail sectional view showiug the means for adjusting theslide valves.

In accordance with my invention I arrange upon each side of thelocomotive 1 adjacent to the forward end thereof dual or double steamengines 22. Each engine 2 embodies the usual cylinder piston and on topof the cylinder is the usual valve chamber 3. The stems l of the slidevalves extend through the rear ends of the valve chambers or chests 8,respectively, and the outer extremities thereof are threaded, as at 5.The outer ends of the valve stems 4 are connected together forsimultaneous movement by means of a vertical yoke 6. The top and bottomends, respectively, of

the yoke 6 are formed with openings {7 that receive the threaded ends 5of the valve stems i and threaded onto the ends '5 of the stems 1 uponboth sides of the yoke 6 are nuts 8, by which the stems may be looked tothe block. This construction need not be adhered to, however.

By means of the nuts 8 it will be seen that the valve stems may beadjusted relatively to each other, so that both slide valves willoperate properly to admit steam to and exhaust the same from therespective cylinders sin'uiltaneously. This block 6 is concctcd at oneedge to a rod 9 which. in turn is connected to the usual valve motion.

Owing to the fact that the yoke 6 is arranged behind the cylinder of theupper engine 2 such block is formed with a ver tical slot 10 throughwhich the cross head. and guides of the top engine extend, as clearlyillustrated in Figures 1 and 2 of the drawings, thereby preventing thinterference with the proper operation of the cross head of the'topengine.

The cross heads of the top and bottom engines 2 on each side of thelocomotive are connected to the forward ends of connecting rods 11-11and the rear ends of the connecting rods 1111 are connected to theadvance drive wheel 12, clearly shown in Figures 1 and 4; of thedrawings. In the present instance, the rear end of the connecting rod 11of the lower engine is connected with acrank pin 13 that is carried bythe drive wheel 12 and the outer end of the crank pin 13 is formed withan upstanding crank arm 14; on the upper end of which is an outwardlyextending crank pin 15. To the crank pin 15 is connected the rear end ofthe connecting rod 11 of the upper engine 2, as clearly shown in Figures1 and 4 of the drawings.

As is usual in locomotive practice, the connections between the rods11-11 and the drive wheel 12 on one side of the locomotive are arranged90 in advance of the connections between the rods 1111 and the drivewheel 12 on the other side of the locomotive.

From the foregoing description, takenin connection with the accompanyingdrawings, it will beseen that the engines 22 on each side of thelocomotive will deliver great power to the drive wheels and will enablesuch wheels to be rotated at comparatively high speed, so that thelocomotive will be capable of carrying a relatively heavy load and atthe same time move with the necessary speed.

I have entered into a detailed description of the construction andrelative arrangement of parts embraced in the present and preferredembodiment of my invention with a view to imparting a full, clear andexact understanding of the said embodiment. I do not desire, however, tobe understood as confining myself to the said specific con struction andrelative arrangement of parts, inasmuch as in the future practice of myinvention such changes or modifications may be made as fairly fallwithin the scope of my invention as defined by my appended claim.

Having thus described the invention, what is claimed as new, is:

The combination, in an engine, having superposed cylinders and a. pistonrod for each cylinder and a driving wheel, a wrist pin positionedeccentrically of the driving wheel, a connecting rod pivoted at one endupon the wrist pin and pivotally connected at its other end with one ofthe piston rods, a crank arm fixed upon the wrist pin, a wrist pincarried by the crank arm and disposed at the same distance ifrointhecenter of the driving wheel as the first mentioned wrist pin and aconnecting rod pivotally mounted at one end upon the second mentionedwrist pin and pivotally connected at its other end with the other pistonrod.

In testimony whereof I affix my signature LOUIS C. TOLLIVER.

